Function scopedQuerySelectionFallback

src/core/dom/query.js:33–42

* Finds all elements that matche `selector`, scoped inside `root` * for user-agents that do not support native scoping. * * This method isn't required for modern builds, can be removed. * TODO(#37136): This will fail if `root` is a `ShadowRoot`. * * @param {Element|ShadowRoot} root * @param {

(root, selector)

 * @return {NodeList}
 */
function scopedQuerySelectionFallback(root, selector) {
  const {classList} = /** @type {Element} */ (root);

  const unique = 'i-amphtml-scoped';
  classList.add(unique);
  const scopedSelector = prependSelectorsWith(selector, `.${unique}`);
  const elements = root./*OK*/ querySelectorAll(scopedSelector);
  classList.remove(unique);
  return elements;
}

/**
 * Finds the first element that matches `selector`, scoped inside `root`.